Answer: 98 units
Step-by-step explanation: C=d x pi
Divide circumference by 3.14. You will get d=98
Before you can use the reason CPCTC, you need to show that two figures which usually are triangles to be congruent. After showing such, you can then say Corresponding parts of the two congruent figures are also congruent to each other.
The order is 7/8, 8/9, o.98
8675 ÷ .5= 17350
You could also multiply by 2 to check your answer
17350 * .5= 8675
You could also divide by 2.